Question

1. Which rational number is equal to its reciprocal
a.1 b.2 c.0 d.-2
2. 1xa= -------=a for any rational number.
a.ax3 b. ax0 c.ax1 d.ax2
3. The solution of 2x-3=7 is
a.4 b.3 c.5 d.0

4. How many diagonals does a convex quadrilateral have?
a. 4 b.3 c.2 d. None
5. The sum of the measures of three angles in a triangle is
a.210o b.90o c.180o d.360o
6. In the class interval 70-80, 80 is the ------
a. Upper limit b. Frequency c. Lower limit d. Range
7. without adding find the sum 1+3+5+7+9
a.16 b.9 c.25 d.36
8. The cube of 70 is
a.343000 b.121000 c.562500 d.212000

Answer 1

a) 1

c)ax1

c)5

c)2

c)180

a)upper limit

c)25

a)343000